Internal-combustion engine



1. WHITCDMB. INTERNAL COMBUSTION ENGiNE.

Patented Mur. 16, 1920.

3 SHEETS-SHEETI APPLICATION FILED lUNE I8. |919.

1. WHITCOMB.;

' INTERNAL COMBUSTION ENGINE.

E. APPLICATION FILED JUNE 13, 1919. 1,333,693. Patented Mar.16,1920.

3 SHEETS-SHEET 2.-

1 Evy a.

WATER' #MET WATER DRMN l I lf2 l Invzor.-

James lu'comb,

I. wHlTcoM.

INTERNAL COMBUSTION ENGINE.

l APPLICATION FILED IUNE I8, I9I9. y 1,333,693. Patented Mar. 16, 1920.

' 3 SHEETS-SHEET3 lnenor.'

UMTED .ST-Aww '1f OFFER wH'TcoMB, oEHAsTINGs NEBRASKA, Assicivon or oNEmnIR-nro 'EARL c; SIPPILIL' ONE-THIRD To ,BENJ'Aiviiiv` E. nEEENEn, ONE-TWELF'TH' ATo RALPH- sLBUcH- Tm ONE-EIGHTH vro JoE MANLEY nAvis, AND ONE-EIGHTH rro CHARLES er'AnIAiivnv LANE, ALI. oE'HAsTINGs, NEBRASKA,v

To all whom-fit may concern v Be it known that I, JAMEs WHi'rcoMm'a citizen of the Unitedl States, resident of Hastings, Nebraska, have invented certain new. and useful Improvements in Internal- Combustionl Engines, of which the following is a specification. Y

Wy invention relates to improvements-in internal combustion engines and aiins to provide a double acting four cycle engine of extremely simple, economical and desirable construction and high efiiciency and the invention includes' the novel features of construction and arrangement. 'and combination 0I" parts hereinafter described and particular-ly defined' by the appended claims.

An embodiment of n'iyinvention is illustrated. in the accompanying drawings, inv

Figure lis a planview, partly in section, of my improved engin-e.

Fig. Q'is a central verticalsection.

Fig. 3V is l-a transverse section 'on the line of the main;V shaft viewed VfromV the left of' Fig. 1. Y

' Fig. 4 lis aA detail view ofthe cam action.

Fig. 5 is-a detail view of the spark control. Fig. 6 is an end view, and Y Fig. 7 a sectional detail of the cylinder head. f

Referring by reference characters to these drawings, kin which similar characters denote the' same'parts throughout theseveral views the numeral 1 designates ya suitable base u on which the v,engine lparts vare mountec andwhich is provided with three parallel vertical webs or fianges 12.11 and 1C,

Vtwo of which, 1a and 1b, extend approximately the entire length of the base.

YUpon the webs 1d and 1b at one end oit'the base is mounted the engine cylinder' which is constructedoi a plurality oi. partsfdetach- 'i .ably bolted together and of 'such construction as to enable themv to be veryy easily .and

economically manufactured.

This comprises a main cylinder 2 kforming The main or inner cylinder 2 i rovided with outwardly extended annular anges 2a to which the cylinder heads are bolted and these anges also serve to support the water INTERNAL-connnsrion ENGINE.

Yspeculation of Letters Patent. Patented Mar.v 16, 1920. Application led June 18; 1919. Serial No. 305,133; 'i

jacket cylinder and` holdthe saine Vspaced trom the main cylinder. to provideAV the' intervening water space as shown.

The cylindery heads are i rovided i. with I properly ground annular r bets as indi-4 cated at Band 5, toform seats for the ends of the cylinders, suitable packing being interposed as indicated at 6.

The cylinder heads are provided with transversely disposed enlarged portions which are provided with inlet and exhaust passages designated a andY Z), respectively -which extend inward from oppositesides of the heads and curve inward to` enter the cylinder lengthwise thereof, their inner ends being shaped to forni, or provided with, suitable valve seats Vfor the inlet and exhaust the ordinary or any approved design which Y is indicated conventionally at 11.

A similarly constructedexhaust manifold 12is connectedto the exhaust passageson kthe opposite side of the engine.

The cylinder Vheads are provided with lat- I erally extending lugs or iianges 1)? and y5X which are designed to be bolted to the webs or flanges 1a and 1b heretofore described.

The reduced or thinner portions of the heads above the port enlargements are providedwith.U threaded openings for the r 'ception ofy the spark plugs indicated at 13.

The cylinderhead is provided with a The Vinlet valves are in- Y central opening throughl which passes the piston yrod 14e, the cylinder head being provided with aii annular iiange extensionv forming an elongated bearing for thepis ton rodwhich is encircled within the bearing by a packing ring 15, preferably of the piston ring type.

I To l'the piston rod within the cylinder yis connected' the piston l'whioh is provided with suitable packing rings as shown and which is designed to divide the cylinder space vinto two combustion chambers asV clearly shown in Figs. 1 and 2.

AThe opposite end faces of the piston are recessed as indicated at 16L and 16h.

The forward or outer end of the piston rod 14 is suitably connected to a cross head head ends or arms forming cross head guides.

`The webs or flanges 1b and lc are pro#` vided with bearings 19 and 20' in which is journaled the'main shaft Qlwhich carries at one end a crank disk 22 and at the other end a fly wheel 23 which may be constructed to serve as a band pulley.

A pitman or connecting rod 24 has one end pivotally connected to the cross head as indicated at 2451 and its other end connectedto the disk 22 by a wrist or bearing 24h connected to the disk eccentric of the axis thereof. Y

Journaled in suitable bearings in the webs oriianges lb and l? parallel with the main shaft is a counter or cam shaft 25 which is driven from the main shaft byV two to one gearing indicated at 26, and this shaft carries cams 27 and 9.8V for operating the exhaustvalves and also the rotary element of the timer which is indicated conventionally at 29. Y

The cams 27 and 28 are similarly constructed a's'shown in detail in Fig. 4. They are adapted to operatewith a wiping Vaction on push rods 29 and 30 guided in suitable brackets 29a and 30EL supported from the engine base. Each push rod is provided with a cam contactV member 28s rigid thereon which is provided with an inclined face adapted to be pushed into contact with the cam, and a flat face adapted to subseuentl bear on the cam as shown in Fio.

.Y a a 4f. The outer end of push` rod 29 is adapted to actuate rocker arm 81 which in turn actuates the valve stern 8 of exhaust valve 8,l the rocker arm being pivotally mounted on a post carried by the cylinder head.

The push Vrod 30 has pinned thereonthe two arms of a forked member 32, the single arm or stem offwhich is arranged to actu-A ate the exhaust valve in the head.

The oscillatory elementV of the 'timer is connected by a link 83 with a hand lever 34: operating over,v a quadrant 35 as shown in Fig. 5.

Having thus described my invention, what i claim is: v

l. in an internal combustion engine, a base having vertical webs, and a cylinder having heads provided withlaterally extending lugs or vflanges resting upon said webs and bolted thereto.

2. In an internal combustion engine, a base having vertical parallel webs, a cylinder having heads supported from said webs, a piston, a piston rod projecting through one of the heads, a cross head to which said rod is connected, said cross head having portions `slidably supported on said webs, and guide bars carried by the webs and bearing on the upper surfaces of said cross head.

3. In an internal combustion engine, a basin); having a plurality of vertical parallel we s, a said webs, a cross head slidably supported on sai-d two webs, a piston in the cylinder having a rod connected with said cross head, a main shaft journaled in bearings supported by one of said webs and another web, a cam shaft journaled in bearings carried by said last named webs and driven from said main shaft,` a pitman connecting' the cross headgwith a crank pin connected with said main shaft, valves in the cylinder heads, and push rods slidably supported from said bed and arranged to be operated by said cams, and means whereby said push rods operate said valves.- Y

4. A double acting internal combustion engine having inlet and exhaust valves in the opposite ends thereof, a main shaft, a cam shaft-driven from said main shaft, and having a pair of oppositely disposed adjacent cams, a pair of slidable parallel push rods having contact members coacting)- with said cam, a rocker arm operativel engaging the exhaust valve stem of tie outer cylinder1 end and one of the push rods, and a rigid member carried bythe other push rod and operatively engaging the exhaust valve in the inner end of the cylinder..

" In testimony whereof, l aiiix iny signature.

JAMES wHiTooMB.

cylinder supported upon two of 

